Someone famous once said something like "It's important to remember that our actions also affect those around us". I don't know who it was, but someone had to say that, just because it's common sense and people are impressed when famous people have some common sense. Anyway. This game is based on something like that.
It's called 3wave because your goal in this is to turn every number to threes. And you do that by tapping them. The number you tap increases by two, and those around it increase by one. Three is highest but numbers loop (three hit by wave turns to zero and tapped three turns to one). Pretty simple mechanics, but later levels are quite challenging.
TL;DR If you like puzzle games then give this one a try. Who knows, you might like it.